updated 09:14 am EDT, Thu July 25, 2013

May be response to electrocutions involving iPhone chargers

Apple has posted a warning on its Chinese website, urging people in the country to avoid using unofficial power chargers with its products. The page also instructs people on how to identify official chargers, using photos of AC adapters for the iPhone, iPad, and iPad mini. First-party chargers have particular labeling.

The reason for the message is unexplained, but is likely related to a pair of electrocutions involving third-party iPhone chargers, one of which was fatal. Although third-party models aren't necessarily dangerous, some are counterfeit and designed to resemble Apple gear without necessarily passing the same safety standards.

Actually the 220/240 versus 110/120 volt issue is real-world very significant in terms of the likelihood of meaningful physical harm from electric shock. Under identical conditions individuals in those areas of the world with 220/240 a/c current are at more real risk, by a lot.

"Identical conditions" of course seldom exist. Issues of as-built local grounding, overcurrent protection, etc, are huge if not all-important. But in any event 220/240 volts adds a lot of hazard above 110/120 volts.

Assuming they use the Edison system, with ground potential between the two hot legs, going to 230/240 poses no additional risk. You just have two supply conductors at 115/120 V against ground instead of one. Now if they ground one of the power legs, that would be a different matter.

The most effective move Apple could make to discourage 3rd party chargers would be to reduce their asking price in China. Accept a lower margin on a safety-related accessory.

Or you could simply use the fatalities as proof that people should buy approved accessories. I guess it's the law of evolution .... if you're stupid enough to buy counterfeit chargers and risk your life, then I'm not sure if you deserve to live :-)